EP 0955449 A1 19991110 - Gas turbine blade
Title (en)
Gas turbine blade
Title (de)
Gasturbinenschaufel
Title (fr)
Aube pour turbine à gaz
Publication
Application
Priority
- EP 98302734 A 19980408
- CA 2231988 A 19980312
- US 4474698 A 19980319
Abstract (en)
In the cooling system for the gas turbine blade, the present invention ensures cooling of the trailing edge part (7,8) of the blade for which machining is difficult, while aiming at improvement of the thermal efficiency. The steam cooling structure for carrying out heat recovery-type steam cooling is employed to the leading edge part (1) and the central part (3) of the blade where machining is easy because of its large thickness, and the convection cooling and film cooling (7,8) are employed for the trailing edge part of the blade where the thickness is small, using steam cooling and air cooling at the same time. <IMAGE>
IPC 1-7
IPC 8 full level
F01D 5/18 (2006.01)
CPC (source: EP US)
F01D 5/187 (2013.01 - EP US); F05D 2240/81 (2013.01 - EP US); F05D 2260/2322 (2013.01 - EP US)
Citation (search report)
- [X] GB 2307520 A 19970528 - ROLLS ROYCE PLC [GB]
- [X] US 5634766 A 19970603 - CUNHA FRANCISCO J [US], et al
- [A] US 5591002 A 19970107 - CUNHA FRANCISCO J [US], et al
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0955449 A1 19991110; EP 0955449 B1 20030827; CA 2231988 A1 19990912; CA 2231988 C 20020528; DE 69817533 D1 20031002; DE 69817533 T2 20040624; US 6079946 A 20000627
DOCDB simple family (application)
EP 98302734 A 19980408; CA 2231988 A 19980312; DE 69817533 T 19980408; US 4474698 A 19980319